INS and Insulin resistance: Upon evaluating the correlation between BMI and glycemic characteristics (Table 3), we observed that BMI was positively correlated with homeostasis model assessment for islet beta β-cell function index (HOMA-β), insulin secretion sensitivity index-2 (ISSI-2) and homeostasis model assessment for insulin resistance (HOMA-IR); whereas negatively correlated with Matsuda Insulin Sensitivity Index (Matsuda ISI), MAGE (r = −0.243, P = 0.002, Figure 2), 24h-MBG, SDBG, AUCgluc > 10mmol/L, MaxBG.